Enterprise Lead Email Collection

I need a fresh, accurate database of decision-makers working at large corporations in the Technology and Finance sectors. Your task is to research and compile verified corporate email addresses for each lead, making sure every contact truly fits both the industry and company-size criteria. Please source only current, legitimate addresses—no generic “info@” or outdated domains. I would like the final list delivered in CSV or Google Sheet format, clearly showing company name, contact name, role/title, and the verified email address. Bounce-free data is essential; I will spot-check samples before releasing the final approval. If you already use tools such as LinkedIn Sales Navigator, ZoomInfo, Apollo, or similar platforms, feel free to leverage them to speed up the process and maintain accuracy. Let me know approximately how many validated contacts you can supply and the timeframe you need.